Why is the output undefined here?

Question

var object = { _text: 'Hello World', getInvite: function() {return this._text}}; 
var func= object.getInvite; 
console.log(func());

Is it because here the function is being invoked not within the context of the object? Which makes 'this' undefined?

Try to put `()` at the end, id est, use func=object.getInvite(); — Eduardo Pascual Aseff, Mar 10 '18 at 22:44
console.log(func) will give expected out as func variable is defined but func function — Naga Sai A, Mar 10 '18 at 22:44
You need to bind `func` back to the original object before calling it, e.g. `func.bind(object)()` — , Mar 10 '18 at 22:49
I believe the reason here is related to the behavior of 'this' in Javascript, I thought someone would mention that. Anyone? — kohl, Mar 10 '18 at 23:00
Please stop duplicating this post, I asked for an explanation. Hope you people get it. — kohl, Mar 10 '18 at 23:01
The first three answers in the linked question answers your question, if you care to read them. If your question is a duplicate, it's a duplicate. Whether you want an explanation isn't relevant. — , Mar 10 '18 at 23:03

score -1 · Answer 1 · edited Mar 10 '18 at 22:51

-1

It's because when you assign object.getInvite to func it loses reference to the rest of the "object" object.

object.getInvite() works because object has a property called _text while func is just a stand alone function which has no references to _text anymore.

edited Mar 10 '18 at 22:51

Cjmarkham

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answered Mar 10 '18 at 22:49

Proximo

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Why is the output undefined here?

1 Answers1